On Sun, 26 Jun 2005, SMoo wrote:

> Right now I can't really afford the $80 for a diagnostics, especially if
> it's going to be an expensive repair...

You can't afford NOT to get the diagnostic, because the longer you drive
it with a transmission fault, the larger and more expensive the repair
will be.

> I think the speed sensor is OK, because the speedometer works...

There are two speed sensors, input and output, and the speedometer working
is not diagnostic.

> Is there anything I can try without getting a diagnostic?

Getting a better job so you can afford the costs involved with owning and
driving a car comes to mind.